But their Ecuadorian midfielder, Segundo Castillo, who is himself black, said: "I know there were some talks on that issue, but this is my second year in Serbia and I have never faced any kind of racial abuse, neither in stadiums nor on the streets of Belgrade.

"In fact, I'm enjoying myself here.

"That's a really strange story. Red Star fans are not racist. Look at me, I'm black and those same Red Star supporters voted me as the club's best player last season.

"So I think we should put that aside and focus just on football, as all of us here are just interested in that.